Re: ioremap: How to

You must compile with optimization... -O2

jeff

rahul patil wrote:

> hi,
> I want build an application that requires the exact memory address 
> (for LCD display). I use ioremap to achieve that. However, when i try 
> to compile the file, i get the following error.
>
> implicit declaration of ioremap
> and hence
> unreferenced ioremap
>
> I assume that this is becuase I can use ioremap only in kernel mode. I 
> have tried using ioperm and iopl, but these work only on intel 
> architecure and my platform does not support this. Nor do i have the 
> device file /dev/port for my platform.
>
> Is there are any way, I can access and set the memory directly in the 
> user(application) mode ? I do want to avoid building a driver and 
> recompiling with the kernel.
>
> The source code is as simple as
> #include<asm/io.h>
> void main()
> {
>  ioremap(0x10000,100);
> }
>
> Thanks and regards,
> Rahul Patil
>